Calling a Servlet With a URL (Sun Java System Web Server 7.0 Developer's Guide to Java Web Applications)

Sun Java System Web Server 7.0 Developer's Guide to Java Web Applications

Calling a Servlet With a URL

You can call servlets by using URLs embedded as links in HTML or JSP pages. The format of these URLs is as follows:

http://server:port/context_roott/servlet/servlet_name?name=value

The following table describes each URL section.

Table 4–1 URL Fields for Servlets Within a Web Application


URL Element	Description
server:port	The IP address or host name and optional port number. To access the default web application for a virtual server, specify only this URL section. You do not need to specify the context_root or servlet_name unless you also wish to specify name-value parameters.
context_root	The context path without the leading “/” at which the web application is installed.
`servlet`	Only needed if no `servlet-mapping` is defined in the `web.xml` file.
servlet_name	The `servlet-name` (or `servlet-mapping` if defined) as configured in the `web.xml` file.
?name=value...	Optional servlet name-value parameters.

In this example, example is the host name, MortPages is the context root, and calcMortgage is the servlet name:

http://www.example.com/MortPages/servlet/calcMortgage?rate=8.0&per=360&bal=180000